期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 55, 期 22, 页码 10148-10159出版社
AMER CHEMICAL SOC
DOI: 10.1021/jm301269s
关键词
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资金
- NIH [GM32136, AI042310]
- Sixten Gemzeus Foundation
- IF's Foundation for Pharmaceutical Research
The Plasmodium falciparum orthologue of the human citokine, macrophage migratory inhibitory factor (PfMIF), is produced by the parasite during malaria infection and modulates the host's immune response. As for other MIF orthologues, PfMIF has tautomerase activity, whose inhibition may influence the cytokine activity. To identify small-molecule inhibitors of the tautomerase activity of PfMIF, virtual screening has been performed by docking 2.1 million compounds into the enzymatic site. Assaying of 17 compounds identified four as active. Substructure search for the most potent of these compounds, a 4-phenoxypyridine analogue, identified four additional compounds that were purchased and also shown to be active. Thirty-one additional analogues were then designed, synthesized, and assayed. Three were found to be potent PfMIF tautomerase inhibitors with K-i of similar to 40 nM; they are also highly selective with K-i > 100 mu M for human MIF.
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